BTRFS info (device loop2): using sha256 (sha256-ce) checksum algorithm BTRFS info (device loop2): using free space tree BTRFS info (device loop2): enabling ssd optimizations ------------[ cut here ]------------ WARNING: CPU: 1 PID: 12806 at fs/read_write.c:504 __kernel_write_iter+0x508/0x5f8 Modules linked in: CPU: 1 PID: 12806 Comm: syz-executor.2 Not tainted 6.1.63-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __kernel_write_iter+0x508/0x5f8 lr : __kernel_write_iter+0x504/0x5f8 fs/read_write.c:504 sp : ffff8000236d74c0 x29: ffff8000236d75a0 x28: ffff7000046daea0 x27: ffff8000236d7640 x26: dfff800000000000 x25: fffffffffffffff7 x24: 1fffe0001b6d023f x23: ffff0000db6811fc x22: ffff000121f28808 x21: dfff800000000000 x20: ffff0000db681180 x19: 00000000000a801d x18: ffff8000236d7560 x17: 0000000000000000 x16: ffff80001208d500 x15: 00000000200000c0 x14: 1ffff00002b040b0 x13: dfff800000000000 x12: 0000000000040000 x11: 00000000000024b0 x10: ffff800025989000 x9 : ffff800008a3f480 x8 : 00000000000024b1 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000011 x3 : 0000000000000001 x2 : ffff000121f28808 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __kernel_write_iter+0x508/0x5f8 __kernel_write fs/read_write.c:537 [inline] kernel_write+0x1b0/0x2f0 fs/read_write.c:558 write_buf fs/btrfs/send.c:591 [inline] send_header fs/btrfs/send.c:709 [inline] send_subvol+0x174/0x3f0c fs/btrfs/send.c:7679 btrfs_ioctl_send+0x1c40/0x21b4 fs/btrfs/send.c:8045 _btrfs_ioctl_send+0x314/0x468 fs/btrfs/ioctl.c:5249 btrfs_ioctl+0x638/0xb08 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 75492 hardirqs last enabled at (75491): [] mod_lruvec_page_state include/linux/vmstat.h:563 [inline] hardirqs last enabled at (75491): [] __kmalloc_large_node+0x13c/0x21c mm/slab_common.c:1099 hardirqs last disabled at (75492): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (75448): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (75446): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---